EP1676396A4 - Verfahren zur kryptographischen verarbeitung einer nachricht, verfahren zum erzeugen einer kryptographisch verarbeiteten nachricht, verfahren zur durchführung einer kryptographischen operation an einer nachricht, computersystem, client-computer, server-computer und computerprogrammelemente - Google Patents

Verfahren zur kryptographischen verarbeitung einer nachricht, verfahren zum erzeugen einer kryptographisch verarbeiteten nachricht, verfahren zur durchführung einer kryptographischen operation an einer nachricht, computersystem, client-computer, server-computer und computerprogrammelemente

Info

Publication number
EP1676396A4
EP1676396A4 EP04775641A EP04775641A EP1676396A4 EP 1676396 A4 EP1676396 A4 EP 1676396A4 EP 04775641 A EP04775641 A EP 04775641A EP 04775641 A EP04775641 A EP 04775641A EP 1676396 A4 EP1676396 A4 EP 1676396A4
Authority
EP
European Patent Office
Prior art keywords
message
computer
cryptographic
creating
program elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04775641A
Other languages
English (en)
French (fr)
Other versions
EP1676396A1 (de
Inventor
Lakshminarayanan Anatharaman
Feng Bao
Huijie Robert Deng
Tieyan Li
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agency for Science Technology and Research Singapore
Original Assignee
Agency for Science Technology and Research Singapore
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agency for Science Technology and Research Singapore filed Critical Agency for Science Technology and Research Singapore
Publication of EP1676396A1 publication Critical patent/EP1676396A1/de
Publication of EP1676396A4 publication Critical patent/EP1676396A4/de
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • H04L9/3249—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures using RSA or related signature schemes, e.g. Rabin scheme
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/085—Secret sharing or secret splitting, e.g. threshold schemes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer And Data Communications (AREA)
EP04775641A 2003-10-03 2004-10-01 Verfahren zur kryptographischen verarbeitung einer nachricht, verfahren zum erzeugen einer kryptographisch verarbeiteten nachricht, verfahren zur durchführung einer kryptographischen operation an einer nachricht, computersystem, client-computer, server-computer und computerprogrammelemente Withdrawn EP1676396A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50872003P 2003-10-03 2003-10-03
PCT/SG2004/000320 WO2005034423A1 (en) 2003-10-03 2004-10-01 Method for cryptographically processing a message, method for generatiing a cryptographically processed message, method for performing a cryptographic operation on a message, computer system, client computer, server computer and computer program elements

Publications (2)

Publication Number Publication Date
EP1676396A1 EP1676396A1 (de) 2006-07-05
EP1676396A4 true EP1676396A4 (de) 2010-03-10

Family

ID=34421780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04775641A Withdrawn EP1676396A4 (de) 2003-10-03 2004-10-01 Verfahren zur kryptographischen verarbeitung einer nachricht, verfahren zum erzeugen einer kryptographisch verarbeiteten nachricht, verfahren zur durchführung einer kryptographischen operation an einer nachricht, computersystem, client-computer, server-computer und computerprogrammelemente

Country Status (2)

Country Link
EP (1) EP1676396A4 (de)
WO (1) WO2005034423A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7995750B2 (en) 2006-07-06 2011-08-09 Sap Ag Privacy-preserving concatenation of strings
US7986780B2 (en) * 2006-07-06 2011-07-26 Sap Ag Privacy-preserving substring creation
US9448976B2 (en) 2008-05-20 2016-09-20 Adobe Systems Incorporated Package file presentation including reference content
US8818959B2 (en) 2008-12-02 2014-08-26 Adobe Systems Incorporated Virtual embedding of files in documents
ITTV20110019A1 (it) * 2011-02-08 2012-08-09 Ct Vue S P A Sistema computerizzato per la gestione di dati sensibili generati da un dispositivo medicale e metodo relativo

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0723348A2 (de) * 1995-01-23 1996-07-24 International Business Machines Corporation Verfahren und Einrichtung für Kryptosystem mit öffentlichem Schlüssel und mit gemeinsamer, proaktiver sicher rückgewinnbarer verteilter Schwellwertnutzung einer geheimen Information
WO1998049804A1 (en) * 1997-04-28 1998-11-05 Certco Llc Optimal-resilience, proactive, public-key cryptographic system and method
WO1999005818A1 (en) * 1997-07-28 1999-02-04 The Director Government Communications Headquarters Split-key cryptographic system and method
US5991414A (en) * 1997-09-12 1999-11-23 International Business Machines Corporation Method and apparatus for the secure distributed storage and retrieval of information

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5905799A (en) * 1994-07-20 1999-05-18 Bell Atlantic Network Services, Inc. Programmed computer for identity verification, forming joint signatures and session key agreement in an RSA public cryptosystem
WO2000049768A1 (en) * 1999-02-17 2000-08-24 Thomas Mittelholzer Method for signature splitting to protect private keys
US6970562B2 (en) * 2000-12-19 2005-11-29 Tricipher, Inc. System and method for crypto-key generation and use in cryptosystem

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0723348A2 (de) * 1995-01-23 1996-07-24 International Business Machines Corporation Verfahren und Einrichtung für Kryptosystem mit öffentlichem Schlüssel und mit gemeinsamer, proaktiver sicher rückgewinnbarer verteilter Schwellwertnutzung einer geheimen Information
WO1998049804A1 (en) * 1997-04-28 1998-11-05 Certco Llc Optimal-resilience, proactive, public-key cryptographic system and method
WO1999005818A1 (en) * 1997-07-28 1999-02-04 The Director Government Communications Headquarters Split-key cryptographic system and method
US5991414A (en) * 1997-09-12 1999-11-23 International Business Machines Corporation Method and apparatus for the secure distributed storage and retrieval of information

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
LIDONG ZHOU ET AL: "COCA: a secure distributed online certification authority", FOUNDATIONS OF INTRUSION TOLERANT SYSTEMS, 2003 [ORGANICALLY ASSURED A ND SURVIVABLE INFORMATION SYSTEMS] 2003, PISCATAWAY, NJ, USA,IEEE, 1 January 2003 (2003-01-01), pages 152 - 191, XP010681820, ISBN: 978-0-7695-2057-5 *
RABIN T: "A SIMPLIFIED APPROACH TO THRESHOLD AND PROACTIVE RSA", ADVANCES IN CRYPTOLOGY. CRYPTO '98. 18TH ANNUAL INTERNATIONAL CRYPTOLOGY CONFERENCE. SANTA BARBARA, AUG. 23 - 27, 1998. PROCEEDINGS; [LECTURE NOTES IN COMPUTER SCIENCE ; VOL. 1462], BERLIN : SPRINGER, DE, 23 August 1998 (1998-08-23), pages 89 - 104, XP000792171, ISBN: 978-3-540-64892-5 *
See also references of WO2005034423A1 *

Also Published As

Publication number Publication date
WO2005034423A1 (en) 2005-04-14
EP1676396A1 (de) 2006-07-05

Similar Documents

Publication Publication Date Title
EP1566920A4 (de) Vorrichtung zur informationsverarbeitung, server-client-system, verfahren und computerprogramm
EP1549055A4 (de) Datenverarbeitungseinrichtung, datenverarbeitungsverfahren, computerprogramm und datenverarbeitungssystem
EP1505765A4 (de) Datenverarbeitungssystem, datenverarbeitungseinrichtung, datenverarbeitungsverfahren und computerprogramm
EP1667146A4 (de) Informationsverarbeitungssystem, informationsverarbeitungsverfahren, computerprogramm ausgeführt in ein informationsverarbeitungssystem
EP1748656A4 (de) Bildverarbeitungsvorrichtung, bildverarbeitungsverfahren und computerprogramm
EP1679594A4 (de) Informationsverarbeitungseinrichtung, prozesssteuerverfahren und computerprogramm
EP1603047A4 (de) Informationsverarbeitungseinrichtung, informationsverarbeitungsverfahren und computerprogramm
EP1524604A4 (de) Informationsverarbeitungseinrichtung, informationsverarbeitungsverfahren und computerprogramm
EP1548592A4 (de) Informationsverarbeitungseinrichtung, prozesssteuerverfahren und computerprogramm
EP1607937A4 (de) Informationsverarbeitungseinrichtung, informationsverarbeitungsverfahren und computerprogramm
EP1631070A4 (de) Informationsverarbeitungsvorrichtung, informationsverarbeitungsverfahren und computerprogramm
EP1443760A4 (de) Datenverarbeitungseinheit und verfahren und programm
EP1612686A4 (de) Inhaltbereitstellungsserver, informationsverarbeitungseinrichtung und -verfahren und computerprogramm
EP1612685A4 (de) Inhaltbereitstellungsserver, informationsverarbeitungseinrichtung und verfahren und computerprogramm
EP1496438A4 (de) Informationsverarbeitungseinrichtung, verfahren und programm
EP1507212A4 (de) Informationsverarbeitungsvorrichtung, informationsverarbeitungsverfahren, inhaltsverteilungsvorrichtung, inhaltsverteilungsverfahren und computerprogramm
EP1631069A4 (de) Einrichtungssteuerverarbeitungseinrichtung, display-verarbeitungseinrichtung, verfahren und computerprogramm
EP1587000A4 (de) Inhaltsablieferungssystem, informationsverarbeitungsvorrichtung oder informationsverarbeitungsverfahren und computerprogramm
EP1548605A4 (de) Kommunikationsverarbeitungsvorrichtung, kommunikationssteuerverfahren und computerprogramm
EP1536593A4 (de) Einrichtung und verfahren zur authentisierung von vorrichtungen, informationsverarbeitungseinrichtung, informationsverarbeitungsverfahren und computerprogramm
EP1517480A4 (de) Informationsverarbeitungsgerät, zugangssteuerungs-verarbeitungsverfahren und computerprogramm
EP2000917A4 (de) Informationsverarbeitungsvorrichtung, informationsverarbeitungsverfahren und computerprogramm
EP1498819A4 (de) Informationsaufzeichnungsmedium, informationsverarbeitungseinrichtung, informationsverarbeitungsverfahren und computerprogramm
EP1655668A4 (de) Informationsverarbeitungseinrichtung, informationsaufzeichnungsmedium, informationsverarbeitungsverfahren und computerprogramm
EP1793620A4 (de) Bildverarbeitungsvorrichtung und -verfahren, abbildungsvorrichtung und computerprogramm

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20060503

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20100208

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20070106

R18D Application deemed to be withdrawn (corrected)

Effective date: 20100508